package com.imooc.follow.config;

import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.ClassPathResource;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.script.DefaultRedisScript;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.http.MediaType;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.client.RestTemplate;

import java.util.Collections;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

@Configuration
public class RestTemplateConfiguration {

    @LoadBalanced
    @Bean
    public RestTemplate restTemplate() {
        RestTemplate restTemplate = new RestTemplate();
        MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
        converter.setSupportedMediaTypes(Collections.singletonList(MediaType.TEXT_PLAIN));
        restTemplate.getMessageConverters().add(converter);
        return restTemplate;
    }


    @Bean
	public RedisTemplate<Object,Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
    	RedisTemplate<Object,Object> redisTemplate = new RedisTemplate<>();
    	redisTemplate.setConnectionFactory(redisConnectionFactory);

    	//使用jackson2JsonRedisSerialize 替换默认序列化
		Jackson2JsonRedisSerializer jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class);

		ObjectMapper objectMapper = new ObjectMapper();
		objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		jackson2JsonRedisSerializer.setObjectMapper(objectMapper);

		//设置key和value的序列号规则
		redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
		redisTemplate.setKeySerializer(new StringRedisSerializer());

		redisTemplate.setHashKeySerializer(new StringRedisSerializer());
		redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);

		redisTemplate.afterPropertiesSet();
		return redisTemplate;
	}

	// @Bean
	// public DefaultRedisScript<Long> stockScript() {
	// 	DefaultRedisScript<Long> redisScript = new DefaultRedisScript<>();
	// 	//放在和application.yml 同层目录下
	// 	redisScript.setLocation(new ClassPathResource("stock.lua"));
	// 	redisScript.setResultType(Long.class);
	// 	return redisScript;
	// }

}
